List-removing device.



Patented Jan. 28, 1919.

J. E. KANE.

LIST REMOVING DEVICE. .APPLICATION FILED JUNE H. 19l8.

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Para a GFFIQE.

LIST-REMOVING DEVICE.

Specification of Letters Patent. Patented J an, 28, 1919.

Application filed June 11, 1918. Serial No. 239,403.

To all whom it may concern:

Be it known that I, JAMES E. KANE, a citizen of the United States of America, and resident of Martins Ferry, county of Belmont, and State of Ohio, have invented certain new and useful Improvements in List- Removing-Devices, of which the following is a specification. I

This invention relates broadly to tinning pot appliances, and more specifically to a list-removing device.

The primary object of the invention is to provide, in association with the discharge rolls of a tinning pot, a simple and efficient device for removing from metal plates or sheets as they emerge from said rolls the surplus tin or other coating 'metal, and more especially for removing from the lower edge of the emerging plate the heavy accumulation of coating metal, commonly termed list, while the latter is still in a molten condition, thus not only accomplishing a great saving in the amount of the expensive coating consumed but also preventing the formationof a heavy bead-like waste-portion at the lower edge of the coated plate.

In describing the invention in detail, reference is herein had to the accompanying drawings, in which Figure 1 is a top plan view of the invention associated with the discharge rolls of a tinning pot;

Fig. 2 is a section on line 2-2, Fig. 1;

Fig. 3 is an enlarged cross section of the housing cap showing in side elevation the adjustable pulley-carrying bracket carried thereby;

Fig. 4 is a face view of said bracket; and

Fig. 5 is an enlarged cross section of the list-removing rollers and their supporting wires.

Referring to said drawings, in which like designating characters distinguish like parts throughout the several views 1 and 2 indicate the two sets of squeeze rolls commonly employed in the discharge end of a tinning pot, the set 1 being the discharge rolls and being partially submerged in the grease, or-palm oil, which overlies the molten coating metal at said end.

Mounted upon the usual housing.cap 3 over each end of and between the rolls 1 is a vertically adjustable bracket 4, said bracket having vertical slots 5 therein through which are directed attaching bolts 6. Carried by the lower end of each bracket two alined rods or shafts 10 having knurled or milled heads 11, each of which has attached thereto at a point adjacent to its inner end one end of a flexible wire 12. Said wires extend from the alined shafts 10 at one side of the pot downward through grooves or channels 13 provided therefor in the inner face of the ca 3 behind the bracket 4 to and under the pu leys 8 carried by said bracket, and thence extend horizontally across the pot to the opposite pulleys 8, thence under said pulleys and upward behind the bracket and connect to the inner ends of the adjacent shafts 10.

Rotatably mounted upon the transverse horizontal portion of each of said wires is a tubular roller 14 composed of a material, preferably glass, which will not take a coating of the coating metal employed. Said rollers are of small diameter, preferably approximately three-eighths of an inch, but may obviously vary somewhat according to the size of the discharge rolls 1.

The brackets 4 are adjusted vertically so that the opposing rollers 14: carried by the wires 12, as aforesaid, are disposed between the rolls 1 in substantially the lowest position permitted by said rolls, or as close to the nip of said rolls as is practicable so that they will be at least partially submerged in the hot oil which is carried in said nip when the rolls are in operation.

It will be clear from the foregoing that plates emerging from between the rolls 1 must pass between the closely overlying rollers 1i. These rollers not only act to subject the plates to a final pressure in which surplus metal is squeezed therefrom, but also serve to effectually remove the list or accumulation of the coating metal which invariably remains on the lower edges of the plates after passing from "the discharge rolls. This final result is due. first. to the fact that the surfaces, of said rollers are devoid of a coating of the tin or other metal which is being applied, and. second, to the fact that they act upon each plate before the coating is commonly supposed, but to be deposited upon said edge by contact of the latter with one or the other of the rolls 1 after it has Wholly passed from between the latter, it being practically impossible to elevate or lift the plate in the manner which has hitherto prevailed without permitting its lower end i to swing to the extent that said edge will engage oneof said rolls.

The rollers 14, which constitute the essehtial feature'of the present invention and between which the emerging plates must pass as they leave the discharge rolls 1, serve to guide the lower edge of the plate vertically from said rolls un'tilit reaches an elevation from which it is not liable to swing into engagement with either roll. Further, be ing located in a position but slightly removed from the nip of'the rolls and being usually at least partially submerged in the heated palm oil carried in said nip, said rollers serve to squeeze from the lower edge of the plate any accumulation of the coating metal which may have drained thereto while such metal is still in a. molten condition, or before such accumulation has solidified through exposure to the air. Moreover, due to the fact that said rollers are composed of glass or other material which does not acquire a surface coating, the smooth and even character of their surfaces is permanently maintained, and said surfaces act upon the coating of the sheet to produce a smooth and even deposit which may result in imparting to the plates an unwonted luster.

As hereinbefore indicated, the rollers may be positioned as desired by adjustment of the brackets 4 on the housing cap. The said rollers may be adjusted to exert upon the plates any pressure within reasonable limits by adjustment of the tension of the wires 12 by which they are-carried. Such adjustment of the wires is efiected by turning the shafts 10 which carry them to increase or decrease the tension. Small drums, as 15 may be provided upon said shafts adapted to have the ends of said wires wound thereon, or the shafts themselves may have said ends wound thereon. Each of said shafts has associated therewith means wherebyit may be firmly held in adjusted position. The means illustrated in the drawings consists of a ratchet wheel 16 carried by the shaft,and a pivoted pawl 17 suitably mounted in a position to coiiperate with said ratchet.

The roller mounting and adjusting means herein shown and described are merely illustrative of a preferred construction. I

t eatre am therefore not to be understood as limited to the specific construction of such means so shown and descri'bed,but may employ other means falling within the scope of the appended claims. i

What is claimed isl. The combination with the discharge rolls of a tinning pot, of a pair of rollers dlsposed adjacent to the nip of said rblls, said rollers being of relatively small diameter and having plate-contactin surfaces which do not collect coating meta 2. The combination with the discharge rolls of a tinning pot, of a pair of glass rollers disposed closely above the nip of said rolls.

3. The combination with the discharge rolls of a tinning pot, of a pair of glass rollers of relatively small diameter disposed over the nip of said rolls and partially sub: merged in the oil carried in said nip.

4:. The combination with the discharge rolls of a tinnin pot, of a pair of rollers closely overlying the nip of said rolls and in contact with the oil carried in said nip.

5. The combination with the discharge rolls of a tinning pot, of a pair of rollers .disposedin closely overlying relation to the nip of said rolls, said rollersbeing of relatively small diameter and being composed of a material which does not acquirea coating of the coating metal.

6. The combination with the discharge rolls of a tinning pot, of a pair of rollers of relatively small diameter occupying the lowest position with respect to the nip of said rolls permitted by their size, said rollers havin surfaces which do not acquire a coating 0 tin. I

The combination with the discharge rolls of a tinning pot, of a pair of rollers composed of a material which does not acquire a coatin of the coating metal, said rollers being 0 such small diameter that they may occupy a position in which they are at least partially submerged in oil carried in the nip of said rollers, and means for adjusting said rollers.

, '8. The combination with the discharge rolls of a tinning pot, of a pair of rollers composed of a material which does not acquire a coating of the coating metal, said rollers being of such small diameter that they may occupy a position in which they are at least partially submerged in oil carried inthe nip of said rollers, and means for adjusting said rollers vertically.

9. The combination with the discharge rolls of a tinning pot, of a pair of rollers composed of. a material which does not acquire a coating of the coating metal, said rollers being of such small diameter that they may occupy a position in which they are at least artiallysubmerged in oil carried in the mp of said rollers, and means for ltd adjusting said rollers to control the pressure exerted thereby upon an interposed plate.

10. The combination with the discharge rolls of a tinning pot, of a pair of rollers composed of 'a material which does not acquire a coating of the coating metal, said rollers being of such small diameter that they may occupy a position in which they are at least partially submerged in oil carried in the nip of saidrolls, means for adjustin saidrollers vertically, and means for ad1usting said rollers to control the pressure exerted thereb upon an interposed plate.

11. The combination with the discharge rolls of a tinning pot, of a pair of parallel wires stretched from side to side of said pot above thenip of said rolls, opposing tubular rollers of relatively small diameter mounted on said wires and in a position at least partially submergedin oil carried in said nip, and means for adjusting the tension of said wires to control the pressure exerted by said rollers upon an interposed plate.-

12. The combination with the discharge rolls o f a tinning pot, of a pair of parallel wires stretched from side to side of said pot above the nip of said rolls, opposing tubular rollers of relatively small diameter mounted on said wires, means for vertically adjusting said wires, and means for adjusting the tension of said wires.

13. The combination with the discharge rolls of a tinning pot, of a pair of opposed rotary sheet-contacting elements disposed in closely overlying relation to the nip of the rolls.

14. The combination with the discharge rolls of a tinning pot, of a pair of opposed rotary sheet-contacting elements disposed in closely overlying relation to the nip of the rolls and in contact with the oil carried in said nip.

In testimony whereof, I afiix my signature in presence of two subscribing witnesses.

- JAMES E. KANE. Witnesses:

H. E. DUNLAP, W. F. KEEFER. 

